66 lines
1.8 KiB
Python
66 lines
1.8 KiB
Python
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#!/usr/bin/env python
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# Example usage of treelib
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#
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# Author: chenxm
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#
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__author__ = "chenxm"
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from treelib import Tree
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def create_family_tree():
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# Create the family tree
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tree = Tree()
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tree.create_node("Harry", "harry") # root node
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tree.create_node("Jane", "jane", parent="harry")
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tree.create_node("Bill", "bill", parent="harry")
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tree.create_node("Diane", "diane", parent="jane")
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tree.create_node("Mary", "mary", parent="diane")
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tree.create_node("Mark", "mark", parent="jane")
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return tree
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def example(desp):
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sep = "-" * 20 + "\n"
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print(sep + desp)
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if __name__ == "__main__":
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tree = create_family_tree()
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example("Tree of the whole family:")
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tree.show(key=lambda x: x.tag, reverse=True, line_type="ascii-em")
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example("All family members in DEPTH mode:")
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print(",".join([tree[node].tag for node in tree.expand_tree()]))
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example("All family members (with identifiers) but Diane's sub-family:")
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tree.show(idhidden=False, filter=lambda x: x.identifier != "diane")
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example("Let me introduce Diane family only:")
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sub_t = tree.subtree("diane")
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sub_t.show()
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example("Children of Diane:")
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for child in tree.is_branch("diane"):
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print(tree[child].tag)
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example("New members join Jill's family:")
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new_tree = Tree()
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new_tree.create_node("n1", 1) # root node
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new_tree.create_node("n2", 2, parent=1)
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new_tree.create_node("n3", 3, parent=1)
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tree.paste("bill", new_tree)
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tree.show()
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example("They leave after a while:")
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tree.remove_node(1)
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tree.show()
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example("Now Mary moves to live with grandfather Harry:")
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tree.move_node("mary", "harry")
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tree.show()
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example("A big family for Mark to send message to the oldest Harry:")
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print(",".join([tree[node].tag for node in tree.rsearch("mark")]))
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